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  1. Moodle
  2. MDL-12594

Restoring a course with 400 users enrolled costs 13k DB queries

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 1.9
    • Fix Version/s: 1.9.1
    • Component/s: Backup
    • Labels:
      None
    • Affected Branches:
      MOODLE_19_STABLE
    • Fixed Branches:
      MOODLE_19_STABLE

      Description

      Ouch, was just playing with a course with 400 users and restoring it cost 13k db queries!

      I quickly put a few mtraces in restore_create_users with $PERF->dbqueries and it seems to cost about 6000 queries on itself to end up not doing much.

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                Dates

                • Created:
                  Updated:
                  Resolved:
                  Fix Release Date:
                  15/May/08